DSS_ERROR(NULL_OPEN, "can not open /dev/null"), \
DSS_ERROR(DUP_PIPE, "exec error: can not create pipe"), \
DSS_ERROR(INVOLUNTARY_EXIT, "unexpected termination cause"), \
DSS_ERROR(NULL_OPEN, "can not open /dev/null"), \
DSS_ERROR(DUP_PIPE, "exec error: can not create pipe"), \
DSS_ERROR(INVOLUNTARY_EXIT, "unexpected termination cause"), \